Which act regulates and enforced the clean up of abandoned hazardous waste sites and hazardous waste sites created prior to RCRA?

The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as Superfund, regulates and enforces the cleanup of abandoned hazardous waste sites and those created prior to the Resource Conservation and Recovery Act (RCRA). Enacted in 1980, CERCLA provides the federal government with the authority to respond to releases of hazardous substances and to compel responsible parties to clean up contaminated sites. The act also established the Superfund program to identify and prioritize these sites for remediation.